. Useful birds and their protection. Containing brief descriptions of the more common and useful species of Massachusetts, with accounts of their food habits, and a chapter on the means of attracting and protecting birds . insects to agricultural products and property in this Commonwealth. While the cost of insect injury is enormous, the expenseof fighting injurious insects in tlie attempt to protect cropsand trees from their ravages is proportionately great. Inrecent years ]Massachusetts has had, and is still having, acostly experience in attempting to control or suppress animported insect. T
. Useful birds and their protection. Containing brief descriptions of the more common and useful species of Massachusetts, with accounts of their food habits, and a chapter on the means of attracting and protecting birds . insects to agricultural products and property in this Commonwealth. While the cost of insect injury is enormous, the expenseof fighting injurious insects in tlie attempt to protect cropsand trees from their ravages is proportionately great. Inrecent years ]Massachusetts has had, and is still having, acostly experience in attempting to control or suppress animported insect. The gipsy moth {Porthetria dispar)^ a well-known pestof European countries, was introduced into Medford, Mass.,by Mr. Leopold Trouvelot, in 1868 or 1869. Twenty yearslater the moths had increased in numbers to such an extentthat they were destroying the trees and shrubbery in thatsection of Medford where they were first liberated. They swarmed over the houses of the inhabitants, invadedtheir gardens, and became such a pul^lic nuisance that in1890 the Legislature appropriated fifty thousand dollars fortheir extermination. It ^vas learned Avithin the next two yearsthat the moths had spread over thirty towns. The State. o .^
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbirds, bookyear1913
